<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        async function getData() {
            await new Promise((resolve, reject) => {
                reject()
                console.log('promise实例');
            })
            await setTimeout(() => {
                console.log('定时器')
            }, 2000);
            
            console.log('实例成功我就跑');
        }
        getData()
    </script>
</body>
</html>